B: Glossary

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Symbol	Description	Location
\(Z\)	The set of the integers	Paragraph Because many functions will have numbers as their domains and/or codomains we use shorthand notation for many common sets of numbers. We denote the integers with \(Z\). We denote the real numbers with \(R\). If we want to refer to only positive numbers we use a + superscript. For example \(Z^+\) refers to the positive integers (also known as the counting numbers). Note as well that 0 is neither negative nor positive. If we want all the positive integers and zero we use \(Z^+ \cup \{0\}\). in-context
\(R\)	The set of the real numbers	Paragraph Because many functions will have numbers as their domains and/or codomains we use shorthand notation for many common sets of numbers. We denote the integers with \(Z\). We denote the real numbers with \(R\). If we want to refer to only positive numbers we use a + superscript. For example \(Z^+\) refers to the positive integers (also known as the counting numbers). Note as well that 0 is neither negative nor positive. If we want all the positive integers and zero we use \(Z^+ \cup \{0\}\). in-context
\(Z^+\)	The set of the positive integers	Paragraph Because many functions will have numbers as their domains and/or codomains we use shorthand notation for many common sets of numbers. We denote the integers with \(Z\). We denote the real numbers with \(R\). If we want to refer to only positive numbers we use a + superscript. For example \(Z^+\) refers to the positive integers (also known as the counting numbers). Note as well that 0 is neither negative nor positive. If we want all the positive integers and zero we use \(Z^+ \cup \{0\}\). in-context